Ambling on with two Christmas carols

When your Christmas spirit makes you want to skip down the lane, consider using John Fahey's medley of "Hark, The Herald Angels Sing" and "O Come All Ye Faithful" as your accompaniment.  Fahey gives each carol a bounce on the guitar, and pairing them illustrates their common thematic ground.  Neither carol is ordinarily intended for ambling down a country road, but in this case...